wkhappy1 commented on issue #8485:
URL: https://github.com/apache/hudi/issues/8485#issuecomment-1516304013
EXPLAIN ANALYZE select count(1) from event where yearmon>=202302
Fragment 1 [SINGLE]
CPU: 1.46ms, Scheduled: 90.21ms, Input: 3 rows (27B); per task: avg.:
3.00 std.dev.: 0.00, Output: 1 row (9B)
Output layout: [count]
Output partitioning: SINGLE []
Stage Execution Strategy: UNGROUPED_EXECUTION
- Aggregate(FINAL) => [count:bigint]
CPU: 1.00ms (2.38%), Scheduled: 46.00ms (25.41%), Output: 1 row
(9B)
Input avg.: 3.00 rows, Input std.dev.: 0.00%
count := "presto.default.count"((count_12)) (1:26)
- LocalExchange[SINGLE] () => [count_12:bigint]
CPU: 0.00ns (0.00%), Scheduled: 43.00ms (23.76%), Output: 3
rows (27B)
Input avg.: 0.19 rows, Input std.dev.: 387.30%
- RemoteSource[2] => [count_12:bigint]
CPU: 0.00ns (0.00%), Scheduled: 0.00ns (0.00%), Output:
3 rows (27B)
Input avg.: 0.19 rows, Input std.dev.: 387.30%
Fragment 2 [SOURCE]
CPU: 40.98ms, Scheduled: 84.96ms, Input: 4561 rows (1.39MB); per task:
avg.: 4561.00 std.dev.: 0.00, Output: 3 rows (27B)
Output layout: [count_12]
Output partitioning: SINGLE []
Stage Execution Strategy: UNGROUPED_EXECUTION
- Aggregate(PARTIAL) => [count_12:bigint]
CPU: 6.00ms (14.29%), Scheduled: 27.00ms (14.92%), Output: 3
rows (27B)
Input avg.: 1520.33 rows, Input std.dev.: 73.43%
count_12 := "presto.default.count"(*) (1:26)
- TableScan[TableHandle {connectorId='hive',
connectorHandle='HiveTableHandle{schemaName=dw_t1, tableName=event,
analyzePartitionValues=Optional.empty}',
layout='Optional[dw_t1.event{domains={yearmon=[ [["202302", <max>)] ]}}]'},
grouped = false] => []
CPU: 35.00ms (83.33%), Scheduled: 65.00ms (35.91%), Output:
4561 rows (0B)
Input avg.: 1520.33 rows, Input std.dev.: 73.43%
LAYOUT: dw_t1.event{domains={yearmon=[ [["202302", <max>)]
]}}
yearmon:int:-13:PARTITION_KEY
:: [["202302"], ["202303"], ["202304"]]
Input: 4561 rows (1.39MB), Filtered: 0.00%
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